Answer:
electric field formed we see that the field is uniform only for a sheet of uniform charge, so the correct answer is b
Explanation:
Let's analyze the shape of the electro field in each given configuration
i) a charge line.
Using Gauss's law the field varies inversely with the distance
E = 2K λ / r
ii) an infinite leaf. the electric field is
E = σ / 2ε₀
iii) two spherical shells
in this case the charge can be considered centered in the center of each shell and the electric field is
E = k q / r²
for each shel linterior
The outer shell does not create an electric field in the space between them
When examining each electric field formed we see that the field is uniform only for a sheet of uniform charge, so the correct answer is b
Answer:
The magnitude of the current is 4A (amperes).
Explanation:
We can use , where V stands for Voltage, I stands for current, and R stands for resistance to solve this problem.
A such:
Acceleration of the both masses tied together= 6m/s²
Explanation:
The force is given by F= ma
so 5= m1 (8)
m1=0.625 Kg
for m2
5=m2 (24)
m2=0.208 kg
now total mass= m1+m2=0.625+0.208
Total mass=M=0.833 Kg
now F= ma
5= 0.833 (a)
a= 5/0.833
a=6m/s²
Answer:
98.4 N
Explanation:
Given that the body weighs 800 N on earth.
Thus,
Weight = mass x acceleration due gravity
i.e W = mg
800 = m x 10
m =
= 80 kg
The mass of the body is 80 kg.
To be able to determine its weight on the planet, we have to first calculate the gravitational pull of the planet.
But,
g =
Where: G is the Newton's universal gravitation, M is the mass of the planet and r is the radius of the planet.
g =
=
= 1.2275
g = 1.23 m/
Thus,
Weight of the body on the planet = mg
= 80 x 1.23
= 98.4 N
The weight of the body on the planet is 98.4 N